Home / 104,435.20-144,120.09-56,688.13

Finding the Fourth Proportional to 104,435.20, 144,120.09 and 56,688.13

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Solution

The fourth proportional to 104,435.20, 144,120.09 and 56,688.13 is: 78,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,435.20 : 144,120.09 = 56,688.13 : x
  2. Step 2: Convert to fraction form
    104,435.20/144,120.09 = 56,688.13/x
  3. Step 3: Cross multiply
    104,435.20x = 144,120.09 × 56,688.13
  4. Step 4: Simplify right side
    104,435.20x = 8,169,898,397.53
  5. Step 5: Solve for x
    x = 8,169,898,397.53/104,435.20
  6. Step 6: Final answer
    x = 78,229.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.